THE PREPARATION OF E-OXIME ETHERS OF PHENYLGLYOXYLIC ESTERS

摘要

ABstract of the Disclosure: E-Oxime ethers of phenylglyoxylic esters of the formula I I X, Y = halogen, alkyl, alkoxy, CF3, C(=NOR)R (R = alkyl or alkenyl) are prepared by reacting oximes of the formula II II with a methylating agent in an organic diluent, and E-oximes of phenylglyoxylic esters of the formula II are prepared by isomerizing the E/Z-oximes.